[PATCH 09/28] drm/i915/writeback: Add function to get modes

[Suraj Kandpal]

Add a function that get modes for writeback connector.
Since we have a restriction on supporting only 3840x2160 60Hz modes
at max we will create modes only up until that point.

Bspec: 49275
Signed-off-by: Suraj Kandpal <suraj.kandpal at intel.com>
---
 drivers/gpu/drm/i915/display/intel_writeback.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_writeback.c b/drivers/gpu/drm/i915/display/intel_writeback.c
index 02f4910d7797..7df99771fd6f 100644
--- a/drivers/gpu/drm/i915/display/intel_writeback.c
+++ b/drivers/gpu/drm/i915/display/intel_writeback.c
@@ -10,6 +10,7 @@
 #include <drm/drm_probe_helper.h>
 #include <drm/drm_fourcc.h>
 #include <drm/drm_encoder.h>
+#include <drm/drm_edid.h>
 
 #include "i915_drv.h"
 #include "intel_atomic.h"
@@ -74,6 +75,11 @@ intel_writeback_connector_alloc(struct intel_connector *connector)
 	return 0;
 }
 
+static int intel_writeback_get_modes(struct drm_connector *connector)
+{
+	return drm_add_modes_noedid(connector, 3840, 2160);
+}
+
 static struct drm_writeback_connector *
 intel_get_writeback_connector(struct drm_connector *connector)
 {
@@ -105,6 +111,7 @@ const struct drm_connector_funcs conn_funcs = {
 
 static const struct drm_connector_helper_funcs conn_helper_funcs = {
 	.get_writeback_connector = intel_get_writeback_connector,
+	.get_modes = intel_writeback_get_modes,
 };
 
 static const struct drm_writeback_connector_helper_funcs writeback_conn_helper_funcs = {
-- 
2.34.1